geometry and RGB?  

This might seem like a silly question.

Given a color gamut and D65 reference, is RGB levels calculated as the geometric distance from the D65 point to each color's primary xy coordinate?

Given that distance, is this the reference value for RGB?

For example, if you look at wizards in colorfacts pro, you get 3 bars (R, G and B). Are the values of these bars derived from the distance of the current xy value to the gamut's primary?

Am I making any sense here?

I'm still not clear.

As I understand it, when you have a point on the CIE chart, the RGB absolute values are the geometric distance between the current point and each specific primary point (R, G or B) factored by the D65 position (if that's what we want our target to be).

Is this true or false?

Ursa,

I don't mean absolute RGB (i.e., actual video data coming out of a plug).

I'm talking about relative RGB, the kind you use in colorfacts to determine which one is too high... that means I only need xy (Y stays out).

The calculation I'm talking about would like like:
B=distance from xy to blue primary factored by D65's distance to blue primary
R=distance from xy to red primary factored by D65's distance to red primary
G=distance from xy to green primary factored by D65's distance to green primary